太平洋白Litopenaeus vannamei中MyoD基因的基因结构,表达和功能分析
Yanting Xia1, Xiaojun Zhang2, Xiaoxi Zhang3
1Chinese Academy of Sciences (CAS) and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Institute of Aquatic Biotechnology, Collage of Life Sciences, Qingdao University, Qingdao 266071, China.
Gene
|May 4, 2024
概括
MyoD基因 (LvMyoD) 对太平洋白的肌肉生长至关重要. 击败LvMyoD抑制了生长,影响了肌肉纤维的发育,这表明它对养殖的重要性.
科学领域:
- 海洋生物学 海洋生物学
- 分子遗传学 分子遗传学
- 水产养殖科学 水产养殖科学
背景情况:
- 太平洋白 (Litopenaeus vannamei) 对全球水产养殖至关重要,但调节其肌肉生长的基因仍未得到充分研究.
- 在许多动物中,MyoD是肌肉发育 (肌肉发生) 的关键调节剂,但其在甲类动物中的功能在很大程度上是未知的.
研究的目的:
- 在Litopenaeus vannamei.中识别和描述MyoD基因 (LvMyoD).
- 调查LvMyoD在肌肉生长,分化和相关分子通路中的作用.
主要方法:
- 鉴定LvMyoD基因序列和植物遗传学分析.
- 使用RT-qPCR分析发育期间的LvMyoD表达模式.
- 通过RNA干扰 (RNAi) 降低LvMyoD,然后进行生长测量,组织学分析和转录组测序.
主要成果:
- LvMyoD具有保存的bHLH域,并显示了与脊椎动物MyoD/Myf5.5的进化联系.
- 在早期发育过程中,LvMyoD的表达很高,在成年人中是肌肉特异性的.
- LvMyoD的淘汰导致抑制生长,肌肉纤维异常,以及与蛋白质合成,热冲击反应和新陈代谢相关的基因的改变表达.
结论:
- 在Litopenaeus vannamei中,LvMyoD对于肌肉发育和肌肉生长至关重要.
- 这种基因是提高养殖计划中的肌肉发育的潜在目标.
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